South Sudan is on the brink of catastrophe. Some 100,000 are already living in famine and nearly five million people - 40% of the population - are facing extreme hunger. More than 60% of the population - 7.5 million people - are in need of humanitarian aid.
A total of 3.5 million have now been forced from their homes, 1.6 million people have fled to neighbouring countries and nearly two million are still within the country.
The crisis is expected to reach its height in July when the peak of the hunger season is expected and half the population could be facing extreme hunger. The people of South Sudan are used to coping with adversity but in over 30 years of working in these affected areas, Oxfam has never witnessed such dire need. Civilians including women and children have been attacked, and schools and hospitals have been looted and burned. Tens of thousands of people have been killed.
Many have had to leave behind their possessions, crops and livestock or sell their assets to escape and have no means to buy food, water and other essentials.
Camps are becoming overcrowded and poor sanitation is increasing the risk of disease.
The declaration of famine in South Sudan reflects the collective failure to heed the countless warnings of an ever-worsening situation. This is a man-made tragedy, and we are running out of time to avoid it getting worse.